Home / 1,203,139.31-1,804,820.30-393,528.31

Finding the Fourth Proportional to 1,203,139.31, 1,804,820.30 and 393,528.31

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Solution

The fourth proportional to 1,203,139.31, 1,804,820.30 and 393,528.31 is: 590,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,139.31 : 1,804,820.30 = 393,528.31 : x
  2. Step 2: Convert to fraction form
    1,203,139.31/1,804,820.30 = 393,528.31/x
  3. Step 3: Cross multiply
    1,203,139.31x = 1,804,820.30 × 393,528.31
  4. Step 4: Simplify right side
    1,203,139.31x = 710,247,882,512.69
  5. Step 5: Solve for x
    x = 710,247,882,512.69/1,203,139.31
  6. Step 6: Final answer
    x = 590,328.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.